Bed foundation



FIG. 1 is a top perspective view of a bed foundation according to our design.

FIG. 2 is a front view of the bed foundation of FIG. 1.

FIG. 3 is a back view of the bed foundation of FIG. 1.

FIG. 4 is a left side view of the bed foundation of FIG. 1.

FIG. 5 is a right side view of the bed foundation of FIG. 1.

FIG. 6 is a top view of the bed foundation of FIG. 1; and,

FIG. 7 is a bottom view of the bed foundation of FIG. 1.

The evenly spaced broken lines in the drawings illustrate portions of the bed foundation, and the unevenly spaced broken lines in FIG. 7 illustrate a boundary of the claim. None of the broken lines form part of the claimed design. 

CLAIM The ornamental design for a bed foundation, as shown and described. 